Dick Powell's Zane Grey Theatre (1956)

S2E15 The Freighter

Belle operates a freight business that her Grandfather established. However, Murdock and his sons have been creating significant obstacles for her, pressuring her into a forced merger. Deprived of essential contracts for her operations, the Murdocks relentlessly harass Belle and her Grandfather, making their lives increasingly difficult as they fight to keep the business afloat.